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Home >> Oldsmobile >> 2004 >> Bravada AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.2L (Introduction) >> Repair Instructions >> Secondary Air Injection (AIR) Pipe Replacement >> Removal Procedure

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    2. Fig 1: Disconnecting/Connecting Air Inlet & Outlet Pipes From AIR Pump
    GM1297763Courtesy of GENERAL MOTORS CORP.
  2. Disconnect both the air inlet and air outlet pipe from the secondary air injection reaction (AIR) pump.
  3. Lower the vehicle.
    4. Fig 2: Removing/Installing AIR Pipe From Cylinder Head
    GM1297756Courtesy of GENERAL MOTORS CORP.
  4. Remove the cylinder head. Refer to Cylinder Head Replacement in Engine Mechanical - 4.2L.
  5. Remove the bolt and fir-tree fasteners securing the AIR pipe to the cylinder head.
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